:root{--bg:#071019;--panel:#0d1924;--panel2:#111f2c;--line:#223747;--text:#edf6fb;--muted:#9fb2bf;--accent:#7ad7ff;--accent2:#d5b86d;--good:#79d9a4;--warn:#f5cb72;--bad:#f38b8b;--max:1180px;--shadow:0 18px 50px rgba(0,0,0,.25)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 50% -10%,#183047 0,#071019 35rem);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:white}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(7,16,25,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(122,215,255,.12)}.head{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.02em}.mark{width:31px;height:31px;border:1px solid #4a758c;border-radius:50%;display:grid;place-items:center;color:var(--accent);box-shadow:inset 0 0 18px rgba(122,215,255,.12)}nav{display:flex;gap:18px;font-size:14px;color:#c5d3dc}.menu-btn{display:none;background:none;border:0;color:white;font-size:24px}.hero{padding:76px 0 54px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-5%;top:20px;width:410px;height:410px;border:1px solid rgba(122,215,255,.12);border-radius:50%;box-shadow:0 0 0 38px rgba(122,215,255,.025),0 0 0 78px rgba(122,215,255,.02);pointer-events:none}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.16em;color:var(--accent);font-weight:800}.hero h1,.page-hero h1{font-size:clamp(38px,6vw,72px);line-height:1.02;letter-spacing:-.055em;margin:12px 0 18px;max-width:860px}.lede{font-size:clamp(17px,2vw,21px);max-width:760px;color:#bfd0d9}.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:10px;border:1px solid var(--line);font-weight:750;font-size:14px;background:#0d1c29}.btn.primary{background:linear-gradient(135deg,#d9f5ff,#76d7ff);color:#061019;border:0}.btn:hover{transform:translateY(-1px)}.fact-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:38px}.fact{padding:17px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(16,31,44,.92),rgba(10,21,31,.92));border-radius:14px}.fact strong{display:block;font-size:20px;letter-spacing:-.03em}.fact span{font-size:12px;color:var(--muted)}main section{padding:28px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section-head h2{margin:0;font-size:28px;letter-spacing:-.03em}.section-head p{margin:0;color:var(--muted);max-width:650px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{display:block;background:linear-gradient(180deg,var(--panel),#0a1620);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.card:hover{border-color:#3b6075}.card h3{margin:5px 0 7px;font-size:20px;letter-spacing:-.025em}.card p{margin:0;color:#b2c2cc}.tag{font-size:11px;font-weight:850;letter-spacing:.08em;text-transform:uppercase}.tag.confirmed{color:var(--good)}.tag.kr{color:var(--warn)}.tag.pending{color:#b9b5ff}.tag.tool{color:var(--accent)}.page-hero{padding:58px 0 28px;border-bottom:1px solid rgba(122,215,255,.09)}.page-hero h1{font-size:clamp(36px,5vw,58px);margin-bottom:14px}.breadcrumbs{font-size:13px;color:#8298a6}.article{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:44px;padding:36px 0 80px}.article h2{margin:38px 0 12px;font-size:27px;letter-spacing:-.035em}.article h3{margin:26px 0 8px}.article p,.article li{color:#c1d0d8}.article strong{color:#f7fbfd}.article ul,.article ol{padding-left:20px}.toc{position:sticky;top:90px;align-self:start;border-left:1px solid var(--line);padding-left:18px;font-size:13px}.toc a{display:block;color:#8fa5b2;padding:6px 0}.toc a:hover{color:white}.status{border:1px solid var(--line);background:#0b1a25;border-radius:13px;padding:14px 16px;margin:18px 0}.status strong{display:block;margin-bottom:3px}.status.confirmed{border-color:rgba(121,217,164,.38)}.status.kr{border-color:rgba(245,203,114,.38)}.status.pending{border-color:rgba(185,181,255,.32)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:13px;margin:16px 0}table{width:100%;border-collapse:collapse;min-width:620px}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#0e1c27;color:#e7f2f7;font-size:13px}td{color:#b9c9d2;font-size:14px}.callout{padding:18px 20px;border-radius:14px;background:linear-gradient(135deg,rgba(122,215,255,.1),rgba(213,184,109,.05));border:1px solid rgba(122,215,255,.18);margin:20px 0}.timeline{display:grid;gap:10px}.time-item{display:grid;grid-template-columns:150px 1fr;gap:15px;padding:15px 0;border-bottom:1px solid var(--line)}.time-item time{color:var(--accent);font-weight:800}.local-time{font-size:14px;color:#d8e7ee}.class-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.class-chip{padding:16px;border:1px solid var(--line);border-radius:14px;background:#0b1721}.class-chip b{display:block}.class-chip span{font-size:12px;color:var(--muted)}.quiz{border:1px solid var(--line);border-radius:16px;padding:22px;background:#0a1721}.quiz-q{margin-bottom:18px}.quiz-q label{display:block;margin:7px 0;color:#c7d5dc}.result{display:none;margin-top:18px;padding:18px;border:1px solid #47718a;border-radius:13px;background:#0e2230}.result.show{display:block}.source-list li{margin-bottom:12px}.footer{border-top:1px solid var(--line);padding:30px 0 48px;color:#8298a6;font-size:13px}.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.small{font-size:12px;color:#8ca0ac}.updated{display:inline-flex;gap:7px;align-items:center;font-size:12px;color:#91a6b3}.updated:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--good)}code{background:#0a151d;border:1px solid var(--line);border-radius:6px;padding:2px 5px;color:#d9edf7}.searchbox{display:flex;gap:8px;margin:14px 0}.searchbox input{flex:1;background:#09151e;border:1px solid var(--line);border-radius:10px;color:white;padding:12px 14px}.hidden{display:none!important}
@media(max-width:850px){nav{display:none}.menu-btn{display:block}.fact-row{grid-template-columns:repeat(2,1fr)}.grid,.grid.two{grid-template-columns:1fr}.article{grid-template-columns:1fr}.toc{display:none}.class-grid{grid-template-columns:repeat(2,1fr)}.hero{padding-top:48px}.hero:after{opacity:.45}.time-item{grid-template-columns:1fr;gap:3px}}
@media(max-width:520px){.wrap{width:min(var(--max),calc(100% - 22px))}.fact-row{grid-template-columns:1fr 1fr}.fact{padding:13px}.fact strong{font-size:17px}.class-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.btn{width:100%}.cta-row{display:grid;grid-template-columns:1fr 1fr}.card{padding:17px}}